diff --git a/src/blockchain/__tests__/addresses.spec.ts b/src/blockchain/__tests__/addresses.spec.ts
new file mode 100644
index 0000000..0734f7a
--- /dev/null
+++ b/src/blockchain/__tests__/addresses.spec.ts
@@ -0,0 +1,21 @@
+import { assertType, expectTypeOf } from 'vitest'
+import {
+    getTokenAddress,
+    getP2PixAddress,
+    getProviderUrl,
+    isPossibleNetwork,
+    possibleChains,
+    network2Chain,
+} from '../addresses'
+
+test("My addresses.ts types work properly", () =>{
+
+    expectTypeOf(getTokenAddress).toBeFunction()
+    expectTypeOf(getP2PixAddress).toBeFunction()
+    expectTypeOf(getProviderUrl).toBeFunction()
+    expectTypeOf(isPossibleNetwork).toBeFunction()
+
+    expectTypeOf(possibleChains).toBeObject()
+    expectTypeOf(network2Chain).toBeObject()
+
+})
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